Insulating covering for pipes



c. RE AD. INSULATING COVERING FOR PIPES.

APPLlCATlON FILED OCT 7. 1920.

1,419,171. Patented June 13, 1922.

C/urles Read C. READ. INSULATING COVERING FOR PHES. APPLICATION menOCT 1. i920.

1,419,171. Patented June 13, 1922.

2 SHEET$5HEET 2.

wuwi'o c 30 Charles R ead PATENT OFFICE.

CHARLES HEAD, OF BROOKLYN, NEW YORK.

INS'UL-ATTNG COVERING FOR PIPES.

Specification of Letters Patent.

Patented June 13, 1922.

Application filed October 7, 1920. Serial No. 415,229.

T 0 all whom it may concern.

Be it known that I, CHAnLns READ, a citizen of the United States, andresident of Morris Park, borou h of Brooklyn, county of Kings, city andtate of New York, have invented certain new and useful Improvements inInsulating Coverings for Pipes.

This invention relates to improvements in insulating coverings for pipesand is 'particularly adapted for use on steam or heat conveying pipes toprevent loss through radiation.

Another object of the invention is to provide a covering which isconstructed to comp-letely enclose the pipe in such a manner to form adead-air chamber there around which provides a particularly effectiveinsulation which prevents radiation.

A further object of the invention is to provide an insulating coveringwhich may be formed in sections and placed around the pipe thus doingaway with the necessity of buil ing forms around the pipe and castingthe insulation in place.

Still another object of the invention is to provide a novel means forconnecting the insulation to the foundation and for securing thesections together.

With the above and other objects in view the invention consists of anovel construction, combination and arrangement of parts which will befully set forth in the following specification, claimed and illustratedin the accompanying drawings, in which Fig. 1, is a side view of a pipeand covering showing portions broken away to more clearly illustrate thedetails of construction.

Fig. 2, is a perspective view of Fig. 1.

Fig. 3, is a fragmentary sectional view through the device illustratedin Fig. 1.

Fig. 4c, is a transverse sectional view illustrating the means forsupporting the covering and Fig. 5, is a fragmentary longitudinalsectional view showing the formation of the covering around a pipejoint.

Fig. 6, is a perspective view of a modified form of cover sectionillustrating the recesses cast therein to receive the ties.

Fig. 7, is a perspective view of one of the ties used in connection withthe structure shown in Fig. 6.

Fig. 8, is a side view of a pipe showing this covering applied theretoand illustrating in detail the method of connecting adj acent sectionsas well as the flanged floor plate used on vertical runs.

Fig. 9, is a sectional view through a iibrous foundation section, and

Fig. 10, is a perspective view showing the clip used for securing thefibrous sections together and supporting the same in spaced relation tothe pipe.

Referring to the drawings in detail, the numeral 10 designates a pipe onwhich the pipe covering is supported. The covering above referred toconsists of a pair of covering sections ll and 12 respectively, each ofwhich comprises mating foundation sec tions 13 which are stamped from asheet of metal and provided at spaced intervals and in staggeredrelation with a plurality of indentations 14. At spaced intervalsthrough- Iii] lid

out the length of the device. certain of the indentations which aredesignated by the numeral 15 are punched through, so that their inneredges engage the periphery of the pipe to form supports therefor. Onelongitudinal edge of each section is provided with an inturned flange 16and the opposite longitudinal edge is provided with an overlappingmember 17, so that when the device is assembled, the overlapping portion17 lies over the edge of the adjacent section carrying the flange 16.

Formed on each foundation section 13 adjacent the flange 16 is aplurality of spaced tongues 18 which are struck therefrom and bentoutwardly as illustrated in Fig. 2. These tongues are adapted to projectthrough slots formed in the overlapping Jortions 17 and it will thus beseen that tilie device may be readily secured in assembled position byextending said tongues through the slots and bending the samedownwardly. The foundation members above described are placed in formsand covered with a plastic coating 19 which preferably consists of amixture of magne sia asbestos compound. Obviously the coating will enterthe recesses 1 and 15 so as to firmly bind the foundation and preventthe possibility of the coating from scparating therefrom. As illustratedin Figs. 2 and 4, the longitudinal edges of the plastic coating arespaced from the edges of the foundation sections and are inclined as at20 in such a manner that when the device is assembled around the pipe apair of diametrically opposed dove-tailed grooves are torus-d so as topermit freedom of access to the securing tongues 1%.

After the device has been assembled in the manner shown. suitableretaining straps 21 are attached lav suitable fastening means surh asnails 23 to the. opposite sections and in this manner two separatesections of the eoatiln it) are securely hound together. A. suitahliplastic filling 23 is then filled in tho dovetailed grooves formed bythe inclined. walls and the entire covering is then con1- plete.hviously the plastic coating 23 needs but little to retain it in placeand therefore the necessity of building a form around the pipe iselin'linated. The same general process is followed in enclosing; a landor joint in a pipe except that care must he exercised in the properposition of the recess over the pipe joint as shown in Fig. 5.

In the modified form of the invention shown in Fig. (l the insulatingmaterial is is formed with spaced recesses 24 to receive the areuateclips :25 which are of a size to [it in the recesses and are providedwith points or spars .26 which are struck there- 'l'rorn and hentoutwardly at right angles to provide anchoring means for the plasticiillin g which is suliiseipiently applied to fill the recesses.

The foundation sections are joined at their ahutting ends as shown inFig. hy spinning down to a reduced diameter one end of each section soas to form a reducial flange 27 which fits into the end of the abuttingor next adjacent section as shown. Uhviously the coating of insulatingmaterial terminates short of the ends of the l'oundalion sections andthe ends of said coating are inclined as shown to form an annulardove-tail groove which is filled after asseml l v with a plasticmaterial such as is used to lill the longitudinal grooves.

()hvionslv the foundation sections may he formed of fibrous material andin this constrnetion which is best illustrated in Fig. 5). the edgesoverlap as shown and are provided with mating slots 28 for the receptionof the securing and spacing members :20. The securing and spacingmenlhrrs (Utilprise a sheet of metal 30 folded centially as at 31 andprovided with reduced ears 232 which are received in the openings 28 andlient outwardly as shown in Fig. 9.

When the device is used on a vertical run of pipe, commonly known ariser, a floor plate such as that illustrated at 33 in Fig. S is used toprevent the plastic tiller used in the longitudinal (love-tail groovesas the sealing material, from running out at the lovver end of thegrooves.

lVhile in the foregoing there has been shown and described a preferredemhodiment of this invention, it is to be understood that certain minorchanges in the details of construction, eonil'iination and. arrangeinent of parts may he resorted to with out departing from thespirit and scope of the invention as claimed.

What is claimed is:--

l. .in insulating covering tor pi ves com prising a 'ilnrality olfmatingiloundat'ion sections. each having a plurality of spaced staggeredrecesses therein; a covering of insulating material secured to the.outer side of each covering; hacking means for securing the foundationsections toe-ether and means for spacing the covering away from a pipeto provide a dead air ehaniher therearound.

2. An insulating coverinr tor pipes comprising a plurality oftransversely arcuate inundation sections, an inturned spacing flangeformed along one longitudinal. edge of each section; an overlappingportion l'ormed along the opposite edge of each section and overlying aportion of the opposite section adjacent the spacing flange. lockingmeans for holding the sections in assembled position and a covering 01insulating material carried in; each section.

t'ligned at the city of New York. in the county and State of New York.this 14th dzrv of June, 1920.

CHARLES READ.

